GML601-E three-wire / two-wire ultrasonic level transmitter is our company's latest design for low-cost, small installation space, equipment supporting and other application conditions. It draws on its strengths, draws on the advantages of a variety of level gauges at home and abroad, and realizes full digitalization. The two-wire system has added the HART protocol. Humanized design concept with perfect material / liquid level measurement and control. The main chip uses dozens of related application-specific integrated circuits such as imported industrial-grade single-chip microcomputers, digital temperature compensation, and ultra-wide voltage input voltage stabilization. It has strong anti-interference ability and can meet most level measurement requirements without touching the industrial medium. It completely solves the shortcomings of entanglement, blockage, leakage, medium corrosion, and inconvenience caused by traditional measurement methods such as pressure, capacitance, and float. Therefore, it can be widely used in various fields related to material level and liquid level measurement and control. This product has been inspected and approved by the national authority. This product complies with the national standard requirements of GB3836.1-2010 and GB3836.4-20010. The explosion-proof mark is ExiaIIBT4Gb.